Research on Focal Length Measurement Scheme of Self-Collimating Optical Instrument Based on Double Grating

Research on Focal Length Measurement Scheme of Self-Collimating Optical Instrument Based on Double Grating

In this paper, we propose a scheme for measuring the focal length of a collimating optical instrument. First, a mathematical model for measuring the focal length of a collimator with double gratings is derived based on the moiré fringe formula and the principles of geometric optics. Mathematical sim...

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Bibliographic Details
Main Authors: Wenchang Yang, Zhiqian Wang, Chengwu Shen, Yusheng Liu, Shaojin Liu, Qinwen Li, Wen Du, Zhuoda Song
Format: Article
Language:English
Published: MDPI AG 2020-05-01
Series:Sensors
Subjects:
focal length measurement
moiré fringe
self-collimating optical system
mathematical model
double grating
Online Access:https://www.mdpi.com/1424-8220/20/9/2718

Internet

https://www.mdpi.com/1424-8220/20/9/2718

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